GENERAL DESCRIPTION The DHR171 is a cordless rotary hammer powered by an 18V LXT Li-ion battery, featuring a brushless motor and a one-touch sliding chuck for easy bit installation and removal. It offers two modes of operation: rotary only and rotary hammer. Additional features include an electric brake, variable speed control, constant speed control, forward/reverse rotation, an LED job light, a compact and lightweight design, and a vibration-absorbing housing. TECHNICAL SPECIFICATIONS Voltage: 18 V Capacity in Concrete: 17 mm Capacity in Steel: 10 mm Capacity in Wood: 13 mm Impact Energy: 1.2 J Shank: SDS PLUS Impacts per Minute: 0 - 4,800 ipm Noise Sound Pressure: 86 dB(A) Noise Sound Power: 97 dB(A) Noise K Factor: 3 dB(A) No Load Speed: 0 - 680 rpm Vibration K Factor: 1.5 m/sec² Vibration: Hammer Drilling: 9.0 m/sec² Vibration: Drilling into Metal: 2.5 m/sec² Net Weight: 2.8 kg COMPATIBILITY AND ACCESSORIES Only compatible with LXT batteries. Comes with a side handle and depth